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3 years ago

What is the solution to the system of linear equations

Mathematics

2 answers:

Natali [406]3 years ago

8 0

>>>I got y=-6 and x=1

Alchen [17]3 years ago

3 0

So this easiest way to solve is to use the elimination method. Basically you just add the equations together. This is what you do.

-5x + y = -11
x - y = 7
Add the equations.(This operation gets rid of the y-value)
-4x = -4
Divide.
x = 1
Now plug in 1 into an equation of your choice and find the value of y.
1 - y = 7
Subtract 1 from both sides.
-y = 6
Divide by -1 because you can't have a -y.
y = -6
So the solution is (1, -6).
I hope this helps love! :)

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<h3>To find the radius of the circle:</h3>

To solve this problem, we need to, first of all, convert the angle from radians to degrees.

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The formula for the length of an arc is given:

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Complete question

A circle has a central angle measuring 7pi/6 radians that intersects an arc of length 18 cm. What is the length of the radius of the circle? Round your answer to the nearest tenth. Use 3.14 for pi.

(A) 3.7 cm

(B) 4.9 cm

(D) 15.4 cm

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Reason 3: Congruent supplements theorem

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Answer:

Step-by-step explanation:

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